% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Bayerbach:46912,
      author       = {Bayerbach, R. and Nguyen, V. D. and Schurr, U. and Meier,
                      D.},
      title        = {{C}haracterization of the water-insoluble fraction from
                      fast pyrolysis liquids (pyrolytic lignin) part {III}.
                      {M}olar mass characteristics by {SEC}, {MALDI}-{TOF}/{MS},
                      {LDI}-{TOF}/{MS}, and {PY}-{FIMS}},
      journal      = {Journal of analytical and applied pyrolysis},
      volume       = {77},
      issn         = {0165-2370},
      address      = {New York, NY [u.a.]},
      publisher    = {Science Direct},
      reportid     = {PreJuSER-46912},
      pages        = {95 - 101},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Matrix assisted laser desorption ionisation-time of
                      flight-mass spectrometry (MALDI-TOF-MS) laser desorption
                      ionisation-time of flight-mass spectrometry (LDI-TOF-MS) and
                      temperature resolved analytical pyrolysis field ionisation
                      mass spectrometry (Py-FIMS) have been applied for the first
                      time on two pyrolytic lignins (PL's), precipitated from
                      different aged bio oil, and four PL-fractions for molar mass
                      characterization. The results were compared with data from
                      size exclusion chromatography (SEC). SEC was the only method
                      that allowed a mathematical calculation of molar mass
                      characteristics such as average molecular weight (Mw),
                      dispersity (D), and the molar mass at the peak maximum of
                      the elugram (Mp). The SEC Mp values of PL-fractions differ
                      from visually interpolated MALDI-TOF-MS measurements by
                      $20\%.$ MALDI-TOF-MS spectra showed detailed structures of
                      the molar mass distribution (MMD) of PL and PL-fractions.
                      Especially, the spectrum of one PL showed various local
                      maxima with intervals of 170-200 Da. The size of these
                      intervals could represent the average absolute molar mass of
                      PL-monomers. MALDI-TOF-MS was limited by the influence of
                      superposing matrix signals in the spectrum at low molar
                      masses. LDI-TOF-MS showed clearer spectra than MALDI-TOF-MS
                      in mass ranges below 400 Da. No signals were obtained for
                      fractions with higher masses or whole PL. Intervals between
                      main signals were mostly 14-16 Da. In spectra of different
                      PL-fractions, corresponding main signals can vary between 2
                      and 4 Da. These mass differences indicate variations in the
                      aliphatic region of the PL molecules. Py-FIMS spectra
                      contained masses of thermally ejected, but unfragmented
                      monomers and dimers. It was the only method, which allowed
                      partial identification of monomeric and dimeric structures
                      of all samples. The detected monomers correspond to known
                      lignin derived compounds in bio oil, the detected dimers
                      have some similarities to phenylcoumaran structures. PL from
                      aged bio oil showed an increased content of higher oligomers
                      and a higher average molecular weight. (C) 2006 Elsevier
                      B.V. All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {ICG-III / JARA-ENERGY},
      ddc          = {660},
      cid          = {I:(DE-Juel1)VDB49 / $I:(DE-82)080011_20140620$},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Chemistry, Analytical / Spectroscopy},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000241223100001},
      doi          = {10.1016/j.jaap.2006.02.002},
      url          = {https://juser.fz-juelich.de/record/46912},
}